Color printed postcard depicting a young woman framed in a wreath of flowers holding a fish; titled "1er AVRIL" at upper left.

Printed captions include: "1er AVRIL" and the French verse at bottom: "Mon beau poisson d'avril est un vrai coffre-fort. Il contient les serments qui fixeront mon sort."

Back bears "CARTE POSTALE" and the postal notice "Certains Pays Étrangers n'acceptant pas la Correspondance de ce côté, se renseigner à la Poste." Preprinted headings "CORRESPONDANCE" and "ADRESSE". Divided back with handwritten address lines; green postage stamp and cancellation visible on front.

Printed (Lithograph). Cardboard stock. Era: Divided Back (1907-1915). Standard size 5.5 x 3.5 in. Country of Origin: France. Occasion: April Fools' Day (Poisson d'avril). Unit of sale: single unit. Publisher unbranded.